1994 C/K 3500 interior fan makes noise for about 2min when engine starts /stops

Asked by nonmech Aug 09, 2015 at 04:56 PM about the 1994 Chevrolet C/K 3500 Cheyenne Crew Cab LB 4WD

Question type: Maintenance & Repair

I am writing to ask for a suggestion for repair.  my truck's interior fan has recently starting making noises as if the fan blades are striking something - but only for about two minutes and only when i start the truck and then when i turn it off.  I put my hand up behind the fan motor and i found a plastic grate with a white plastic panel lying on opt of that.  if i push up on the white plastic panel the noise stops, when i release the noise starts.

2 Answers
224,085

Rowefast answered 9 years ago

Well you know were the problem is, your going to have to investigate further. Pull out the fan motor and look at the squirrel cage for rub marks, try to see were the interference is. Also see if the squirrel cage is spinning true, sometimes they get out of whack, just take care in bending true again. Also see if there is wear in the fan motor bearing by wiggling the squirrel cage. If so, replace the fan motor, you will have to attach the original squirrel cage.

Best Answer Mark helpful

Your Answer:

Related Questions

  • 1994 C/K 3500 interior fan makes noise for about 2min when engine starts /stops 2 Answers

    I am writing to ask for a suggestion for repair. my truck's interior fan has recently starting making noises as if the fan blades are striking something - but only for about two minutes and only when...

    1994 Chevrolet C/K 3500 Cheyenne Crew Cab LB 4WD

    -

    Maintenance & Repair

  • 1992 K 3500 won't start, no fuel, poor fuel in throttle body it starts. is there a relay for the fuel pump or did the fuel pump die? 1 Answer

    won't start unless poor fuel into throttle body is there a relay for the fuel pump or the fuel pump died it was running when I parked it

    1992 Chevrolet C/K 3500 LB 4WD

    -

    Maintenance & Repair

  • A/C Stopped 1995 Chevy 3500 2 Answers

    1995 Chevy 3500 diesel dually turbo..76k miles. Had only 2 owers who used it to come to sunny FL from up North. Bought from Chevy Dealer; specifically asked about AC strenght since reside in FL but pl...

    1995 Chevrolet C/K 3500 Cheyenne Crew Cab LB RWD

    -

    Maintenance & Repair

  • 1994 chevy 3500 rear diff problems 1 Answer

    I backed the truck out of her parking spot and went to go forward but it locked up and skidded...I went and backed up for a bit and put it in 1st and it went just fine I re-parked cause I don't want...

    1994 Chevrolet C/K 3500 Silverado LB 4WD

    -

    Maintenance & Repair

  • engine 2 Answers

    can you take out 454 chevy engine and exchange with c/k 1500

    2000 Chevrolet C/K 3500 Extended Cab LB 4WD

    -

    Maintenance & Repair

Shortcuts

Search Chevrolet C/K 3500 Questions

CarGurus Experts

  • #1
    Joe_2019
    Reputation
    420
  • #2
    Gene Arnett
    Reputation
    410
  • #3
    Keith Massey
    Reputation
    220
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet C/K 2500
1 listing

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.